/**
 * @Author：JIAMIN_TANG
 * @Description:
 * @CreateTime：2025/9/20 17:40
 */

class X{
    Y y = new Y();
    public X(){
        System.out.print("X");
    }
}
class Y{
    public Y(){
        System.out.print("Y");
    }
}
public class Z extends X{
    Y y = new Y();
    public Z(){
        System.out.print("Z");
    }
    public static void main(String[] args){
        new Z();
    }
}
